[PATCH] First cut at supporting > 1 file per job

This is likely very buggy, a simple test works though.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/log.c b/log.c
index 4c7742b..00e3913 100644
--- a/log.c
+++ b/log.c
@@ -18,6 +18,7 @@
 		io_u->offset = ipo->offset;
 		io_u->buflen = ipo->len;
 		io_u->ddir = ipo->ddir;
+		io_u->file = ipo->file;
 		free(ipo);
 		return 0;
 	}
@@ -46,6 +47,7 @@
 	struct list_head *entry;
 
 	INIT_LIST_HEAD(&ipo->list);
+	ipo->file = io_u->file;
 	ipo->offset = io_u->offset;
 	ipo->len = io_u->buflen;